Unknown lures

[FishfulThinkin]

I found these lures in a box of yard sale "fishing stuff." A Google search for the keel-fish lure turned up almost nothing. The fish shaped blade is void of markings and I assume it's a trolling flasher.
My question is, does anybody remember seeing or using a keel-fish? I'm tempted to try it.

The Keel Fish is another brand of Flatfish or Kwikfish type trolling lure. I'm sure it would still work and probably catch fish.  Give it a try.